/Engine/Plugins/Experimental/PlatformCrypto/Source/PlatformCryptoTypes/Public/PlatformCryptoTypes.h
Decrypt one or more blocks of data. OutPlaintext must be at least size of the result of GetUpdateBufferSizeBytes, or it will fail. If Ciphertext is less than the size of a block, OutPlaintext may or may not be modified until more data is provided in a future call to Update.
Success if all input was valid and was decrypted successfully, or Failure otherwise
[EPlatformCryptoResult](API\Plugins\PlatformCryptoTypes\EPlatformCryptoResult) Update ( const [TArrayView](API\Runtime\Core\Containers\TArrayView)< const uint8 > Ciphertext, const [TArrayView](API\Runtime\Core\Containers\TArrayView)< uint8 > OutPlaintext, int32 & OutPlaintextBytesWritten )